Construction and characterization of highly stretchable ionic conductive hydrogels for flexible sensors with good anti-freezing performance

Synthesis of sodium alginate/polyacrylamide photochromic hydrogels with quadruple crosslinked networks

“…The elongation at break increased first and then decreased, and the highest elongation at break was achieved when the SA content was 0.75%. Furthermore, by comparing with the hydrogels reported in the literature 4,23,24,37,47–54 (Fig. 1e), the mechanical properties of the hydrogels prepared in this experiment were at an above average level, showing good mechanical properties.…”

Cold-resistant, highly stretchable ionic conductive hydrogels for intelligent motion recognition in winter sports

“…33 For instance, Zhang et al constructed polyacrylamide/sodium alginate/LiCl ionic conductive hydrogels by free radical polymerization, and the introduction of LiCl enhanced the freeze resistance of the hydrogels. 34 The hydrogels exhibited excellent ionic conductivity (60.61 mS cm À1 ) at À30 1C and maintained good stretchability ranging from À30 1C to 25 1C. Zhang et al reported an ionic conductive composite hydrogel prepared using LiCl and glycerol.…”

Preparation and properties of nanocellulose- reinforced environmentally adaptable PAM/PVA semi- interpenetrating highly conductive ion-conducting hydrogel

“…When the Li + concentration increased to a certain level, due to the limited cross-sectional area of the channel, it was di cult for the ion channel to ensure that all ions pass through, and the collision of conductive ions reduced the conductivity, which was manifested as a decrease in conductivity. In addition, a large amount of Li + was immobilized through ionic interactions, leading to a decrease in the cross-sectional area of ion channels and a decrease in conductivity [27] . Hydrogel samples with different ions were prepared, and their conductivity tests were compared.…”